def test_range(self):
self.assertEqual(
_.range(0), [],
'range with 0 as a first argument generates an empty array')
self.assertEqual(
_.range(4), [0, 1, 2, 3],
'range with a single positive argument generates an array of elements 0,1,2,...,n-1'
)
self.assertEqual(
_.range(5, 8), [5, 6, 7],
'range with two arguments a & b, a<b generates an array of elements a,a+1,a+2,...,b-2,b-1'
)
self.assertEqual(
_.range(8, 5), [],
'range with two arguments a & b, b<a generates an empty array'
)
self.assertEqual(
_.range(3, 10, 3), [3, 6, 9],
'range with three arguments a & b & c, c < b-a, a < b generates an array of elements a,a+c,a+2c,...,b - (multiplier of a) < c'
)
self.assertEqual(
_.range(3, 10, 15), [3],
'range with three arguments a & b & c, c > b-a, a < b generates an array with a single element, equal to a'
)
self.assertEqual(
_.range(12, 7, -2), [12, 10, 8],
'range with three arguments a & b & c, a > b, c < 0 generates an array of elements a,a-c,a-2c and ends with the number not less than b'
)
self.assertEqual(_.range(0, -10,
-1), [0, -1, -2, -3, -4, -5, -6, -7, -8, -9],
'final example in the Python docs')
def test_range(self):
self.assertEqual(
list(_.range(0)), [], 'range with 0 as a first argument'
' generates an empty array')
self.assertEqual(list(_.range(4)), [0, 1, 2, 3],
'range with a single positive argument generates'
' an array of elements 0,1,2,...,n-1')
self.assertEqual(list(_.range(5, 8)),
[5, 6, 7], 'range with two arguments a & b,'
' a<b generates an array of elements '
' a,a+1,a+2,...,b-2,b-1')
self.assertEqual(list(_.range(8, 5)),
[], 'range with two arguments a & b, b<a'
' generates an empty array')
self.assertEqual(list(_.range(3, 10, 3)),
[3, 6, 9], 'range with three arguments a & b'
' & c, c < b-a, a < b generates an array '
' of elements a,a+c,a+2c,...,b - (multiplier of a) '
' < c')
self.assertEqual(list(_.range(3, 10, 15)),
[3], 'range with three arguments a & b &'
' c, c > b-a, a < b generates an array with '
'a single element, equal to a')
self.assertEqual(list(_.range(12, 7, -2)), [12, 10, 8],
'range with three arguments a & b & c, a'
' > b, c < 0 generates an array of elements'
' a,a-c,a-2c and ends with the number not less than b')
self.assertEqual(list(_.range(0, -10, -1)),
[0, -1, -2, -3, -4, -5, -6, -7, -8, -9], 'final'
' example in the Python docs')
def test_random(self):
array = _.range(1000)
mi = math.pow(2, 31)
ma = math.pow(2, 62)
def check(*args):
return _.random(mi, ma) >= mi
result = _.every(array, check)
self.assertTrue(result, "should produce a random number greater than or equal to the minimum number")
def check2(*args):
r = _.random(ma)
return r >= 0 and r <= ma
result = _.every(array, check2)
self.assertTrue(result, "should produce a random number when passed max_number")
def test_random(self):
array = _.range(1000)
mi = math.pow(2, 31)
ma = math.pow(2, 62)
def check(*args):
return _.random(mi, ma) >= mi
result = _.every(array, check)
self.assertTrue(
result, "should produce a random number greater than or equal"
" to the minimum number")
def check2(*args):
r = _.random(ma)
return r >= 0 and r <= ma
result = _.every(array, check2)
self.assertTrue(
result, "should produce a random number when passed max_number")
